2
3.1 Connector
Description
Connectors CN2 and CN3 provide all bus interface pins of the chip, such as processor bus interface and DMA
interface. Therefore, these pins provide the same pin characteristics of the R8A66597FP such as electric
characteristic, I/O direction, and functions except for the signal with *.
The following table shows the pin number and function correspondences.
Pin Description of
R8A66597FP
Connector
Pin Number of Connector
Function of R8A66597FP
D15-8 CN2
2-9(D15-8) Data bus (I/O)
D7/AD7-D1/AD1 CN2 11-17(D7/AD7-D1/AD1)
Multiplex bus (I/O)
D0 CN2
18
Data bus (I/O)
SD7-0 CN2
41-48(SD7-0)
Split bus (DMA Interface) (I/O)
A6-1 CN3
17-12
Address bus (I)
A7/ALE CN3
21
Address bus or ALE (I/I)
WR0_N* CN3
1
Write strobe (I)
WR1_N* CN2
23
Write strobe (I)
RD_N* CN3
3
Read strobe (I)
CS_N* CN3
5
Chip select (I)
RST_N*** CN3
6
Reset (I)
Vbus CN2
24
Vbus (O)
EXIOVcc (VIF)
CN2
25, 26
Interface power supply (I)
DREQ0_N, DREQ1_N
CN3
7, 26
DMA request (O)
DACK0_N **,
DACK1_N
CN3 8,
25
DMA acknowledge (I)
SOF_N CN3
24
SOF pulse output (O)
INT_N CN3
9
Interrupt (O)
DEND0_N, DEND1_N CN3
36, 40
End of DMA transfer (I/O)
VDD (EX_VCC)
CN3
19, 20
Power supply (3.3V) (I)
GND
CN2
1, 10, 19, 20, 29, 30, 49, 50
GND
GND
CN3
2, 4, 10, 11, 18, 29, 30, 49, 50
GND
NC CN2
21,
22
No pin
NC
CN2
27, 28, 31-40
Unused pin
NC CN3
22, 23, 27, 28, 31-35, 37-39,
41-48
Unused pin
*: Pulled up with 10k
Ω
**: Pulled up 1M
Ω
***: Connected to GND with 0.1 µF
Содержание M3A-0040
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